Appabattjs fob treating hydrocarbon oils



G. EGLOFF ET AL APPARATUS FOR TREATING HYDROCARBON OILS Feb. 3, 1925.

or1g1na1 Filed my 15, 1920 Patented Feb. 3, 1925.

UNITED STATES PATENT OFFICE.

G-USTA'V' EGLOFF AND HARRY I?. BENNER, OF INDEPENDENCE, KANSAS,ASSIGNORS T UNIVERSAL OIL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A.CORPORATION OF SOUTH DAKOTA.

APPARATUS FOR TR-EATING HYIJRCARBN OILS.

Application filed July 15, 1920, Serial To all 'whom t may conce/fa:

Be it lrnown that we, Gos'rsv Boitiers and HARRY l). Berman, citizens ofthe United States, residing in the` city of Independence,

county of Montgomery, and tritate of liansas, have invented certain newand useful Improvements in Apparatus for Treating Hydrocarbon Oils, ofwhich the following is a specification.

This invention relates to improvementsIl in apparatus for treating`hydrocarbon oils and refers more particularly to an apparatus forcracking etroleum.

The object of the invention is to provide a construction which obtains amaximum ellioiency and utilization of the heat units in the cracking ofthe oil and which, at the same time, prevents local deposition of carbonor the formation of hot spots on the lower part of the still. Otherobjects of the invention will appear from the description of theapparatus hereinafter set forth.

In the drawings:

Fig. 1 is a view, partly in vertical section r and partly in sideelevation, of our improved invention.

Fig. 2 is a transverse sectional view showing the arrangement of theflushing nozzles.

F ig. 3 is a detail view of the flushing member.

Referring in detail to the drawings, 1 designates the furnace wallprovided with stack 2. Extending through this furnace is a heatingelement or tube 3, which prefer ably takes the form of a shell havingcorru gations Il. Gas or other fuel is supplied to the tube 3 by theburner 5. The gases of combustion pass out through the rear end of thetube 3 to the stack 2. Extending around and preferably concentricallywith the tube 3 is the cylindrical still member 6. This still 6 isprovided with manholes 7, liquid drawoff 3, controlled by throttle valve9 and vapor outlet or dome 1t). The dome 1() is connected by pipe 11with the lower end of the dephlegmator 12. A valve 13 is interposed inthe pipe 11. The dephlegma tor 12 is provided with a plurality ofinclined ball-le plates 111 and at its lower end with the right-angledpartition member 15, having a spaced cap 16. The uncondensed vapors orgases pass out of the upper end of the dephlegmator through pipe 17 inwhich No. 396,472. Renewed July 16, 1924:.

is interposed valve 18. The pipe 17 leads to condenser coil 19 seated incondenser box 2t). The lower end of this coil 19 leads to the oilreceiver 2l.. The receiver 21 is provided with pressure gauge 22 andliquid level gauge 23. lt also has liquid drawo'lf 211, controlled byvalve 25, as well as gas outlet 26 controlled by a similar valve 27. Thereflux condensate passes from the dephlegmator above the member 15 tothe pipe 23 leading to the still as shown. rt, valve 29 is interposed inthis line 28.

Fresh oil is introduced in the following manner: The inlet side of thepump 30 is connected by line 31, controlled by valve 32 to any suitablesource of supply. This supply may be cool oil or preheated oil. Thedischarge side of the pump is connected by line 33, controlled by valve34:, to the header 35 of the flushing nozzle. This flushing nozzle isprovided with a plurality of nozzle units 36, which extend into thestill and circuinferentially around the adjacent end of the heating unit3. The header 35 may talre the form of a ring provided at one side witha series of radially projecting members 36, which preferably havecontracted openings 37. The arrangement is such that the oil introducedthrough the nozzles constantly sweeps in the form of jets of spray,across the hot surface of the tube 3. Preferably the liquid level of theoil in the still is mainn tained somewhat above the top of the burnerelement 3. In this construction, the precipi* tated carbon tends to fallonto the bottom of the still with the heavier residue which can beconstantly drawn off through the line 8. If desired, the residue in thebottom of the still may be. from time to time, flushed out through theline 38, leading to the lower part of the still and provided withcontrol valve 39.

Preferably, the oil is introduced through the nozzle elements atrelatively high pres sure and velocity so as to tend to sweep any carbonoff the heating element.

TWe claim as our invention:

1. In an apparatus for treating oil, the combination with a still, of anannular heating element extending therethrough, means for introducingoil into said still comprising a flushing member, having a plurality ofnozzle elements extending circumferentially around the heating elementand adjacent the latter, a supply pump and connections between said pumpand flushing member.

2. In an apparatus for treating oil, the combination with a still, o anannular heating element extending therethrough, means f for introducingoil into said Still under pressure comprising a flushing member adjacentthe heatingelement, a supply pump and connections between said pump andflushing member.

y 3.` In `an apparatus for treating oil, the combination With astilhofaheating element extendingtherethrough, means for forcing oilunder pressure along and around the pe rphery of said heating elementcomprising a Hushing member extending circumferentially around theheating element and adj acent thereto.

4L. In an apparatus for treatingV oil, (he

combination with a Still, of a heating element extending therethrough,means for forcing oil under pressure along and around the periphery ofsaid heating element, and means for Flushing out the residue content inthe lower portion of the still* GUSTAV EGLOFF.

HARRY P. BENNE R.

